<div dir="ltr">Hi Charlotte,<div><br></div><div>Thank you very much for this data and plots, they are very useful! It's great to see that the LOFAR polarisation has the same patterns as what we see in FAST.</div><div><br></div><div>I don't have any questions at the minute, but I'll have a play around with the data and see if anything interesting comes up.</div><div><br></div><div>Thank you and all the best,</div><div>Crispin</div><div><div><div dir="ltr" class="gmail_signature" data-smartmail="gmail_signature"><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><div><div dir="ltr"><font face="arial, helvetica, sans-serif" size="1">-----------------------------------------------------------------<br></font><div><p class="MsoNormal"><b><span style="color:black">Crispin Agar</span></b><span style="color:black"> </span><span style="color:gray">| PhD Student - Time Domain Astrophysics | Jodrell Bank Centre for Astrophysics<br></span><span style="color:gray">Department of Physics & Astronomy, School of Natural Sciences</span></p><p class="MsoNormal"><span style="color:gray">3.224 Alan Turing Building |The University of Manchester | Oxford Road | M13 9PL</span><u></u><u></u></p><p class="MsoNormal"><span style="color:rgb(31,73,125)"><a href="mailto:crispin.agar@manchester.ac.uk" style="color:rgb(17,85,204)" target="_blank"><span style="color:blue">crispin.agar@manchester.ac.uk</span></a></span></p></div></div></div></div></div></div></div></div></div></div></div></div></div></div><br></div></div><br><div class="gmail_quote"><div dir="ltr" class="gmail_attr">On Wed, 3 Jun 2020 at 15:39, Sobey, Charlotte (CASS, Kensington WA) <Charlotte.Sobey@csiro.au> wrote:<br></div><blockquote class="gmail_quote" style="margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">
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<p class="MsoNormal"><span style="font-size:11pt">Hi Crispin, Patrick, cc’ing PWG,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Hope this email finds you well.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Here’s a link to a google drive folder with an initial LOFAR core polarisation profile of J0250:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><a href="https://drive.google.com/drive/folders/1O1IDzYe5hBaSD_7QrXtbrRHAo5DHgA4x" target="_blank">https://drive.google.com/drive/folders/1O1IDzYe5hBaSD_7QrXtbrRHAo5DHgA4x</a><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Included is:<u></u><u></u></span></p>
<ul style="margin-top:0cm" type="disc">
<li class="gmail-m_-8443121523948283279MsoListParagraph" style="margin-left:0cm"><span style="font-size:11pt">J0250+58_L625014_profile-pav.pdf: plot from psrchive pav -STF<u></u><u></u></span></li><ul style="margin-top:0cm" type="circle">
<li class="gmail-m_-8443121523948283279MsoListParagraph" style="margin-left:0cm"><span style="font-size:11pt">These data have NOT been polarisation calibrated, so the Stokes V and PAs from the LOFAR data have opposite signs to the convention<u></u><u></u></span></li></ul>
<li class="gmail-m_-8443121523948283279MsoListParagraph" style="margin-left:0cm"><span style="font-size:11pt">J0250+58_L625014_profile.pdf : my version of the polarisation profile with the correct Stokes V and PA convention
<u></u><u></u></span></li><li class="gmail-m_-8443121523948283279MsoListParagraph" style="margin-left:0cm"><span style="font-size:11pt">J0250+58_L625014_SAP0_BEAM0.paz.fscr.Tscr.RM.b4.stokesL5.txt : Ascii text file of time- and freq-averaged Stokes data used<u></u><u></u></span></li><li class="gmail-m_-8443121523948283279MsoListParagraph" style="margin-left:0cm"><span style="font-size:11pt">profile_plot.ipynb : python notebook used to make my version of the plot using the ascii text file (sorry it’s in python 2, not 3!)<u></u><u></u></span></li><li class="gmail-m_-8443121523948283279MsoListParagraph" style="margin-left:0cm"><span style="font-size:11pt">final_J0250+58_5bin.pdf : RM plot shared previously. This RM was installed in the archive file used to make all plots.<u></u><u></u></span></li></ul>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Here’s the vap output with the general info about the archive file used:<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">filename freq bw nchan nsub nbin npol length mjd dm rm<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">J0250+58_L625014_SAP0_BEAM0.paz.fscr.Tscr.RM.b4 148.926 78.125 400 1 16384 4 3588.753 58054.977333 45.280998 54.649<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">I cc’d the PWG list because Caterina, Aris, at al., may be able to give you some guidance regarding the latest polarisation calibration for the beamformed data, and if it’s advised to apply it to this data.
The instrumental polarisation doesn’t look too bad from the Faraday spectrum to me, but they may have more comments about this.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt">Please just let me know if you have any problems accessing the folder or have any questions.
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt"><u></u> <u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;color:black">Many thanks and best wishes,<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;color:black">Charlotte<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:11pt;color:black">--<u></u><u></u></span></p>
<p class="MsoNormal"><b><span style="font-size:11pt;color:rgb(0,169,206)">Dr Charlotte Sobey</span></b><span style="font-size:13.5pt;font-family:"Times New Roman",serif"><u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:9pt;color:black">Postdoctoral Fellow
<u></u><u></u></span></p>
<p class="MsoNormal"><span style="font-size:9pt;color:black">Astronomy and Space Science </span><span style="font-size:9pt;color:rgb(0,169,206)">|</span><span style="font-size:9pt;color:black">
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<p class="MsoNormal"><u><span style="font-size:9pt;color:black"><a href="mailto:charlotte.sobey@csiro.au" target="_blank"><span style="color:rgb(5,99,193)">charlotte.sobey@csiro.au</span></a></span></u><span style="font-size:9pt;color:black">
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